So it seems that they have changed this spell but there has been many changes in this game I do not even think the devs intended to do. Well anyways, this spell casts as fast as a fireball but does instant damage. Not too bad. The problem is this spell covers most of the screen, goes through any walls, and goes on top of any building or the bottom floor of any building. Then there's this guild that's exploiting this spell and running every guy with that spell and just spamming thunderstorm and you cannot even wall it off. They were hitting me with thunderstorm outside of the SL base when I was in side and again when they were in the base and I ran outside and they just spammed it. Kinda overpowered.